Liquid level alarm



FIG. 1 is a front, top and right side perspective view of a liquid levelalarm showing my new design;

FIG. 2 is a reduced front elevational view thereof;

FIG. 3 is a reduced side elevational view taken from the left of FIG. 1;

FIG. 4 is a reduced rear elevational view thereof;

FIG. 5 is a reduced top plan view thereof;

FIG. 6 is a reduced bottom plan view thereof.

The ornamental design for a liquid level alarm, substantially as shownand described.